[BACK]Return to mandoc_char.7 CVS log [TXT][DIR] Up to [cvsweb.bsd.lv] / mandoc

Diff for /mandoc/mandoc_char.7 between version 1.21 and 1.72

version 1.21, 2009/09/23 09:06:44 version 1.72, 2018/08/08 14:30:48
Line 1 
Line 1 
 .\"     $Id$  .\"     $Id$
 .\"  .\"
 .\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>  .\" Copyright (c) 2003 Jason McIntyre <jmc@openbsd.org>
   .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   .\" Copyright (c) 2011, 2013, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
 .\"  .\"
 .\" Permission to use, copy, modify, and distribute this software for any  .\" Permission to use, copy, modify, and distribute this software for any
 .\" purpose with or without fee is hereby granted, provided that the above  .\" purpose with or without fee is hereby granted, provided that the above
Line 13 
Line 15 
 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN  .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"  .\"
 .Dd $Mdocdate$  .Dd $Mdocdate$
 .Dt MANDOC_CHAR 7  .Dt MANDOC_CHAR 7
 .Os  .Os
 .\" SECTION  
 .Sh NAME  .Sh NAME
 .Nm mandoc_char  .Nm mandoc_char
 .Nd mandoc special characters  .Nd mandoc special characters
 .\" SECTION  
 .Sh DESCRIPTION  .Sh DESCRIPTION
 This documents the special characters and predefined strings accepted by  This page documents the
   .Xr roff 7
   escape sequences accepted by
 .Xr mandoc 1  .Xr mandoc 1
 to format  to represent special characters in
 .Xr mdoc 7  .Xr mdoc 7
 and  and
 .Xr man 7  .Xr man 7
 documents.  Specific output devices of  documents.
 .Xr mandoc 1 ,  
 dictated by the  
 .Fl T Ns Ar output  
 argument, will properly render these sequences.  
 .\" PARAGRAPH  
 .Pp  .Pp
 Both  The rendering depends on the
 .Xr mdoc 7  .Xr mandoc 1
   output mode; it can be inspected by calling
   .Xr man 1
   on the
   .Nm
   manual page with different
   .Fl T
   arguments.
   In ASCII output, the rendering of some characters may be hard
   to interpret for the reader.
   Many are rendered as descriptive strings like
   .Qq <integral> ,
   .Qq <degree> ,
   or
   .Qq <Gamma> ,
   which may look ugly, and many are replaced by similar ASCII characters.
   In particular, accented characters are usually shown without the accent.
   For that reason, try to avoid using any of the special characters
   documented here except those discussed in the
   .Sx DESCRIPTION ,
   unless they are essential for explaining the subject matter at hand,
   for example when documenting complicated mathematical functions.
   .Pp
   In particular, in English manual pages, do not use special-character
   escape sequences to represent national language characters in author
   names; instead, provide ASCII transcriptions of the names.
   .Ss Dashes and Hyphens
   In typography there are different types of dashes of various width:
   the hyphen (\(hy),
   the en-dash (\(en),
   the em-dash (\(em),
   and the mathematical minus sign (\(mi).
   .Pp
   Hyphens are used for adjectives;
   to separate the two parts of a compound word;
   or to separate a word across two successive lines of text.
   The hyphen does not need to be escaped:
   .Bd -unfilled -offset indent
   blue-eyed
   lorry-driver
   .Ed
   .Pp
   The en-dash is used to separate the two elements of a range,
   or can be used the same way as an em-dash.
   It should be written as
   .Sq \e(en :
   .Bd -unfilled -offset indent
   pp. 95\e(en97.
   Go away \e(en or else!
   .Ed
   .Pp
   The em-dash can be used to show an interruption
   or can be used the same way as colons, semi-colons, or parentheses.
   It should be written as
   .Sq \e(em :
   .Bd -unfilled -offset indent
   Three things \e(em apples, oranges, and bananas.
   This is not that \e(em rather, this is that.
   .Ed
   .Pp
   In
   .Xr roff 7
   documents, the minus sign is normally written as
   .Sq \e- .
   In manual pages, some style guides recommend to also use
   .Sq \e-
   if an ASCII 0x2d
   .Dq hyphen-minus
   output glyph that can be copied and pasted is desired in output modes
   supporting it, for example in
   .Fl T Cm utf8
 and  and
 .Xr man 7  .Fl T Cm html .
 encode special characters with  But currently, no practically relevant manual page formatter actually
   requires that subtlety, so in manual pages just write plain
   .Sq -
   to represent hyphen, minus, and hyphen-minus.
   .Pp
   If a word on a text input line contains a hyphen, a formatter may decide
   to insert an output line break after the hyphen if that helps filling
   the current output line, but the whole word would overflow the line.
   If it is important that the word is not broken across lines in this
   way, a zero-width space
   .Pq Sq \e&
   can be inserted before or after the hyphen.
   While
   .Xr mandoc 1
   never breaks the output line after hyphens adjacent to a zero-width
   space, after any of the other dash- or hyphen-like characters
   represented by escape sequences, or after hyphens inside words in
   macro arguments, other software may not respect these rules and may
   break the line even in such cases.
   .Pp
   Some
   .Xr roff 7
   implementations contains dictionaries allowing to break the line
   at syllable boundaries even inside words that contain no hyphens.
   Such automatic hyphenation is not supported by
   .Xr mandoc 1 ,
   which only breaks the line at whitespace, and inside words only
   after existing hyphens.
   .Ss Spaces
   To separate words in normal text, for indenting and alignment
   in literal context, and when none of the following special cases apply,
   just use the normal space character
   .Pq Sq \  .
   .Pp
   When filling text, output lines may be broken between words, i.e. at space
   characters.
   To prevent a line break between two particular words,
   use the unpaddable non-breaking space escape sequence
   .Pq Sq \e\ \&
   instead of the normal space character.
   For example, the input string
   .Dq number\e\ 1
   will be kept together as
   .Dq number\ 1
   on the same output line.
   .Pp
   On request and macro lines, the normal space character serves as an
   argument delimiter.
   To include whitespace into arguments, quoting is usually the best choice;
   see the MACRO SYNTAX section in
   .Xr roff 7 .
   In some cases, using the non-breaking space escape sequence
   .Pq Sq \e\ \&
   may be preferable.
   .Pp
   To escape macro names and to protect whitespace at the end
   of input lines, the zero-width space
   .Pq Sq \e&
   is often useful.
   For example, in
   .Xr mdoc 7 ,
   a normal space character can be displayed in single quotes in either
   of the following ways:
   .Pp
   .Dl .Sq \(dq \(dq
   .Dl .Sq \e \e&
   .Ss Quotes
   On request and macro lines, the double-quote character
   .Pq Sq \(dq
   is handled specially to allow quoting.
   One way to prevent this special handling is by using the
   .Sq \e(dq
   escape sequence.
   .Pp
   Note that on text lines, literal double-quote characters can be used
   verbatim.
   All other quote-like characters can be used verbatim as well,
   even on request and macro lines.
   .Ss Accents
   In output modes supporting such special output characters, for example
   .Fl T Cm pdf ,
   and sometimes less consistently in
   .Fl T Cm utf8 ,
   some
   .Xr roff 7
   formatters convert the following ASCII input characters to the
   following Unicode special output characters:
   .Bl -column x(ga U+2018 -offset indent
   .It \(ga Ta U+2018 Ta left single quotation mark
   .It \(aq Ta U+2019 Ta right single quotation mark
   .It \(ti Ta U+02DC Ta small tilde
   .It \(ha Ta U+02C6 Ta modifier letter circumflex
   .El
   .Pp
   In prose, this automatic substitution is often desirable;
   but when these characters have to be displayed as plain ASCII
   characters, for example in source code samples, they require
   escaping to render as follows:
   .Bl -column x(ga U+2018 -offset indent
   .It \e(ga Ta U+0060 Ta grave accent
   .It \e(aq Ta U+0027 Ta apostrophe
   .It \e(ti Ta U+007E Ta tilde
   .It \e(ha Ta U+005E Ta circumflex accent
   .El
   .Ss Periods
   The period
   .Pq Sq \&.
   is handled specially at the beginning of an input line,
   where it introduces a
   .Xr roff 7
   request or a macro, and when appearing alone as a macro argument in
   .Xr mdoc 7 .
   In such situations, prepend a zero-width space
   .Pq Sq \e&.
   to make it behave like normal text.
   .Pp
   Do not use the
   .Sq \e.
   escape sequence.
   It does not prevent special handling of the period.
   .Ss Backslashes
   To include a literal backslash
   .Pq Sq \e
   into the output, use the
   .Pq Sq \ee
   escape sequence.
   .Pp
   Note that doubling it
   .Pq Sq \e\e
   is not the right way to output a backslash.
   Because
   .Xr mandoc 1
   does not implement full
   .Xr roff 7
   functionality, it may work with
   .Xr mandoc 1 ,
   but it may have weird effects on complete
   .Xr roff 7
   implementations.
   .Sh SPECIAL CHARACTERS
   Special characters are encoded as
 .Sq \eX  .Sq \eX
 .Pq for a one-character escape ,  .Pq for a one-character escape ,
 .Sq \e(XX  .Sq \e(XX
Line 48  encode special characters with 
Line 255  encode special characters with 
 and  and
 .Sq \e[N]  .Sq \e[N]
 .Pq N-character .  .Pq N-character .
 One may generalise  For details, see the
 .Sq \e(XX  .Em Special Characters
 as  subsection of the
 .Sq \e[XX]  .Xr roff 7
 and  manual.
 .Sq \eX  
 as  
 .Sq \e[X] .  
 Predefined strings are functionally similar to special characters, using  
 .Sq \e*X  
 .Pq for a one-character escape ,  
 .Sq \e*(XX  
 .Pq two-character ,  
 and  
 .Sq \e*[N]  
 .Pq N-character .  
 One may generalise  
 .Sq \e*(XX  
 as  
 .Sq \e*[XX]  
 and  
 .Sq \e*X  
 as  
 .Sq \e*[X] .  
 .\" SECTION  
 .Sh Special Characters  
 These are the preferred input symbols for producing special characters.  
 .\" PARAGRAPH  
 .Pp  .Pp
 Typographic:  Spacing:
 .Bl -tag -width Ds -offset indent -compact  .Bl -column "Input" "Description" -offset indent -compact
 .It \e~  .It Em Input Ta Em Description
 .Pq non-breaking space  .It Sq \e\ \& Ta unpaddable non-breaking space
 .It \e  .It \e\(ti   Ta paddable non-breaking space
 .Pq space  .It \e0      Ta unpaddable, breaking digit-width space
 .It \e^  .It \e|      Ta one-sixth \e(em narrow space, zero width in nroff mode
 .Pq zero-width space  .It \e^      Ta one-twelfth \e(em half-narrow space, zero width in nroff
 .It \e%  .It \e&      Ta zero-width space
 .Pq zero-width space  .It \e%      Ta zero-width space allowing hyphenation
 .It \e&  
 .Pq zero-width space  
 .It \e|  
 .Pq zero-width space  
 .It \e0  
 .Pq white-space  
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Grammatic:  Lines:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(em      Ta \(em     Ta em-dash  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(en      Ta \(en     Ta en-dash  .It \e(ba    Ta \(ba        Ta bar
 .It \e(hy      Ta \(hy     Ta hyphen  .It \e(br    Ta \(br        Ta box rule
 .It \e\e       Ta \\       Ta back-slash  .It \e(ul    Ta \(ul        Ta underscore
 .It \\e        Ta \e       Ta back-slash  .It \e(ru    Ta \(ru        Ta underscore (width 0.5m)
 .It \e'        Ta \'       Ta apostrophe  .It \e(rn    Ta \(rn        Ta overline
 .It \e`        Ta \`       Ta back-tick  .It \e(bb    Ta \(bb        Ta broken bar
 .It \e.        Ta \.       Ta period  .It \e(sl    Ta \(sl        Ta forward slash
 .It \e(r!      Ta \(r!     Ta upside-down exclamation  .It \e(rs    Ta \(rs        Ta backward slash
 .It \e(r?      Ta \(r?     Ta upside-down question  
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
   Text markers:
   .Bl -column "Input" "Rendered" "Description" -offset indent -compact
   .It Em Input Ta Em Rendered Ta Em Description
   .It \e(ci    Ta \(ci        Ta circle
   .It \e(bu    Ta \(bu        Ta bullet
   .It \e(dd    Ta \(dd        Ta double dagger
   .It \e(dg    Ta \(dg        Ta dagger
   .It \e(lz    Ta \(lz        Ta lozenge
   .It \e(sq    Ta \(sq        Ta white square
   .It \e(ps    Ta \(ps        Ta paragraph
   .It \e(sc    Ta \(sc        Ta section
   .It \e(lh    Ta \(lh        Ta left hand
   .It \e(rh    Ta \(rh        Ta right hand
   .It \e(at    Ta \(at        Ta at
   .It \e(sh    Ta \(sh        Ta hash (pound)
   .It \e(CR    Ta \(CR        Ta carriage return
   .It \e(OK    Ta \(OK        Ta check mark
   .It \e(CL    Ta \(CL        Ta club suit
   .It \e(SP    Ta \(SP        Ta spade suit
   .It \e(HE    Ta \(HE        Ta heart suit
   .It \e(DI    Ta \(DI        Ta diamond suit
   .El
   .Pp
   Legal symbols:
   .Bl -column "Input" "Rendered" "Description" -offset indent -compact
   .It Em Input Ta Em Rendered Ta Em Description
   .It \e(co    Ta \(co        Ta copyright
   .It \e(rg    Ta \(rg        Ta registered
   .It \e(tm    Ta \(tm        Ta trademarked
   .El
   .Pp
   Punctuation:
   .Bl -column "Input" "Rendered" "Description" -offset indent -compact
   .It Em Input Ta Em Rendered Ta Em Description
   .It \e(em    Ta \(em        Ta em-dash
   .It \e(en    Ta \(en        Ta en-dash
   .It \e(hy    Ta \(hy        Ta hyphen
   .It \ee      Ta \e          Ta back-slash
   .It \e.      Ta \.          Ta period
   .It \e(r!    Ta \(r!        Ta upside-down exclamation
   .It \e(r?    Ta \(r?        Ta upside-down question
   .El
   .Pp
 Quotes:  Quotes:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(Bq      Ta \(Bq     Ta right low double-quote  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(bq      Ta \(bq     Ta right low single-quote  .It \e(Bq    Ta \(Bq        Ta right low double-quote
 .It \e(lq      Ta \(lq     Ta left double-quote  .It \e(bq    Ta \(bq        Ta right low single-quote
 .It \e(rq      Ta \(rq     Ta right double-quote  .It \e(lq    Ta \(lq        Ta left double-quote
 .It \e(oq      Ta \(oq     Ta left single-quote  .It \e(rq    Ta \(rq        Ta right double-quote
 .It \e(cq      Ta \(cq     Ta right single-quote  .It \e(oq    Ta \(oq        Ta left single-quote
 .It \e(aq      Ta \(aq     Ta apostrophe quote (text)  .It \e(cq    Ta \(cq        Ta right single-quote
 .It \e(dq      Ta \(dq     Ta double quote (text)  .It \e(aq    Ta \(aq        Ta apostrophe quote (ASCII character)
 .It \e(Fo      Ta \(Fo     Ta left guillemet  .It \e(dq    Ta \(dq        Ta double quote (ASCII character)
 .It \e(Fc      Ta \(Fc     Ta right guillemet  .It \e(Fo    Ta \(Fo        Ta left guillemet
 .It \e(fo      Ta \(fo     Ta left single guillemet  .It \e(Fc    Ta \(Fc        Ta right guillemet
 .It \e(fc      Ta \(fc     Ta right single guillemet  .It \e(fo    Ta \(fo        Ta left single guillemet
   .It \e(fc    Ta \(fc        Ta right single guillemet
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Brackets:  Brackets:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "xxbracketrightbtx" Rendered Description -offset indent -compact
 .It \e(lB      Ta \(lB     Ta left bracket  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(rB      Ta \(rB     Ta right bracket  .It \e(lB    Ta \(lB        Ta left bracket
 .It \e(lC      Ta \(lC     Ta left brace  .It \e(rB    Ta \(rB        Ta right bracket
 .It \e(rC      Ta \(rC     Ta right brace  .It \e(lC    Ta \(lC        Ta left brace
 .It \e(la      Ta \(la     Ta left angle  .It \e(rC    Ta \(rC        Ta right brace
 .It \e(ra      Ta \(ra     Ta right angle  .It \e(la    Ta \(la        Ta left angle
 .It \e(bv      Ta \(bv     Ta brace extension  .It \e(ra    Ta \(ra        Ta right angle
   .It \e(bv    Ta \(bv        Ta brace extension (special font)
 .It \e[braceex] Ta \[braceex] Ta brace extension  .It \e[braceex] Ta \[braceex] Ta brace extension
 .It \e[bracketlefttp] Ta \[bracketlefttp] Ta top-left hooked bracket  .It \e[bracketlefttp] Ta \[bracketlefttp] Ta top-left hooked bracket
 .It \e[bracketleftbp] Ta \[bracketleftbp] Ta bottom-left hooked bracket  .It \e[bracketleftbt] Ta \[bracketleftbt] Ta bottom-left hooked bracket
 .It \e[bracketleftex] Ta \[bracketleftex] Ta left hooked bracket extension  .It \e[bracketleftex] Ta \[bracketleftex] Ta left hooked bracket extension
 .It \e[bracketrighttp] Ta \[bracketrighttp] Ta top-right hooked bracket  .It \e[bracketrighttp] Ta \[bracketrighttp] Ta top-right hooked bracket
 .It \e[bracketrightbp] Ta \[bracketrightbp] Ta bottom-right hooked bracket  .It \e[bracketrightbt] Ta \[bracketrightbt] Ta bottom-right hooked bracket
 .It \e[bracketrightex] Ta \[bracketrightex] Ta right hooked bracket extension  .It \e[bracketrightex] Ta \[bracketrightex] Ta right hooked bracket extension
 .It \e(lt      Ta \(lt     Ta top-left hooked brace  .It \e(lt    Ta \(lt        Ta top-left hooked brace
 .It \e[bracelefttp] Ta \[bracelefttp] Ta top-left hooked brace  .It \e[bracelefttp] Ta \[bracelefttp] Ta top-left hooked brace
 .It \e(lk      Ta \(lk     Ta mid-left hooked brace  .It \e(lk    Ta \(lk        Ta mid-left hooked brace
 .It \e[braceleftmid] Ta \[braceleftmid] Ta mid-left hooked brace  .It \e[braceleftmid] Ta \[braceleftmid] Ta mid-left hooked brace
 .It \e(lb      Ta \(lb     Ta bottom-left hooked brace  .It \e(lb    Ta \(lb        Ta bottom-left hooked brace
 .It \e[braceleftbp] Ta \[braceleftbp] Ta bottom-left hooked brace  .It \e[braceleftbt] Ta \[braceleftbt] Ta bottom-left hooked brace
 .It \e[braceleftex] Ta \[braceleftex] Ta left hooked brace extension  .It \e[braceleftex] Ta \[braceleftex] Ta left hooked brace extension
 .It \e(rt      Ta \(rt     Ta top-left hooked brace  .It \e(rt    Ta \(rt        Ta top-left hooked brace
 .It \e[bracerighttp] Ta \[bracerighttp] Ta top-right hooked brace  .It \e[bracerighttp] Ta \[bracerighttp] Ta top-right hooked brace
 .It \e(rk      Ta \(rk     Ta mid-right hooked brace  .It \e(rk    Ta \(rk        Ta mid-right hooked brace
 .It \e[bracerightmid] Ta \[bracerightmid] Ta mid-right hooked brace  .It \e[bracerightmid] Ta \[bracerightmid] Ta mid-right hooked brace
 .It \e(rb      Ta \(rb     Ta bottom-right hooked brace  .It \e(rb    Ta \(rb        Ta bottom-right hooked brace
 .It \e[bracerightbp] Ta \[bracerightbp] Ta bottom-right hooked brace  .It \e[bracerightbt] Ta \[bracerightbt] Ta bottom-right hooked brace
 .It \e[bracerightex] Ta \[bracerightex] Ta right hooked brace extension  .It \e[bracerightex] Ta \[bracerightex] Ta right hooked brace extension
 .It \e[parenlefttp] Ta \[parenlefttp] Ta top-left hooked parenthesis  .It \e[parenlefttp] Ta \[parenlefttp] Ta top-left hooked parenthesis
 .It \e[parenleftbp] Ta \[parenleftbp] Ta bottom-left hooked parenthesis  .It \e[parenleftbt] Ta \[parenleftbt] Ta bottom-left hooked parenthesis
 .It \e[parenleftex] Ta \[parenleftex] Ta left hooked parenthesis extension  .It \e[parenleftex] Ta \[parenleftex] Ta left hooked parenthesis extension
 .It \e[parenrighttp] Ta \[parenrighttp] Ta top-right hooked parenthesis  .It \e[parenrighttp] Ta \[parenrighttp] Ta top-right hooked parenthesis
 .It \e[parenrightbp] Ta \[parenrightbp] Ta bottom-right hooked parenthesis  .It \e[parenrightbt] Ta \[parenrightbt] Ta bottom-right hooked parenthesis
 .It \e[parenrightex] Ta \[parenrightex] Ta right hooked parenthesis extension  .It \e[parenrightex] Ta \[parenrightex] Ta right hooked parenthesis extension
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Arrows:  Arrows:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(<-      Ta \(<-     Ta left arrow  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(->      Ta \(->     Ta right arrow  .It \e(<-    Ta \(<-        Ta left arrow
 .It \e(<>      Ta \(<>     Ta left-right arrow  .It \e(->    Ta \(->        Ta right arrow
 .It \e(da      Ta \(da     Ta down arrow  .It \e(<>    Ta \(<>        Ta left-right arrow
 .It \e(ua      Ta \(ua     Ta up arrow  .It \e(da    Ta \(da        Ta down arrow
 .It \e(va      Ta \(va     Ta up-down arrow  .It \e(ua    Ta \(ua        Ta up arrow
 .It \e(lA      Ta \(lA     Ta left double-arrow  .It \e(va    Ta \(va        Ta up-down arrow
 .It \e(rA      Ta \(rA     Ta right double-arrow  .It \e(lA    Ta \(lA        Ta left double-arrow
 .It \e(hA      Ta \(hA     Ta left-right double-arrow  .It \e(rA    Ta \(rA        Ta right double-arrow
 .It \e(uA      Ta \(uA     Ta up double-arrow  .It \e(hA    Ta \(hA        Ta left-right double-arrow
 .It \e(dA      Ta \(dA     Ta down double-arrow  .It \e(uA    Ta \(uA        Ta up double-arrow
 .It \e(vA      Ta \(vA     Ta up-down double-arrow  .It \e(dA    Ta \(dA        Ta down double-arrow
   .It \e(vA    Ta \(vA        Ta up-down double-arrow
   .It \e(an    Ta \(an        Ta horizontal arrow extension
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Logical:  Logical:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(AN      Ta \(AN     Ta logical and  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(OR      Ta \(OR     Ta logical or  .It \e(AN    Ta \(AN        Ta logical and
 .It \e(no      Ta \(no     Ta logical not  .It \e(OR    Ta \(OR        Ta logical or
 .It \e[tno]    Ta \[tno]   Ta logical not (text)  .It \e[tno]  Ta \[tno]      Ta logical not (text font)
 .It \e(te      Ta \(te     Ta existential quantifier  .It \e(no    Ta \(no        Ta logical not (special font)
 .It \e(fa      Ta \(fa     Ta universal quantifier  .It \e(te    Ta \(te        Ta existential quantifier
 .It \e(st      Ta \(st     Ta such that  .It \e(fa    Ta \(fa        Ta universal quantifier
 .It \e(tf      Ta \(tf     Ta therefore  .It \e(st    Ta \(st        Ta such that
 .It \e(3d      Ta \(3d     Ta therefore  .It \e(tf    Ta \(tf        Ta therefore
 .It \e(or      Ta \(or     Ta bitwise or  .It \e(3d    Ta \(3d        Ta therefore
   .It \e(or    Ta \(or        Ta bitwise or
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Mathematical:  Mathematical:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "xxcoproductxx" "Rendered" "Description" -offset indent -compact
 .It \e(pl      Ta \(pl     Ta plus  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(mi      Ta \(mi     Ta minus  .It \e-      Ta \-          Ta minus (text font)
 .It \e-        Ta \-       Ta minus (text)  .It \e(mi    Ta \(mi        Ta minus (special font)
 .It \e(-+      Ta \(-+     Ta minus-plus  .It +        Ta +           Ta plus (text font)
 .It \e(+-      Ta \(+-     Ta plus-minus  .It \e(pl    Ta \(pl        Ta plus (special font)
 .It \e[t+-]    Ta \[t+-]   Ta plus-minus (text)  .It \e(-+    Ta \(-+        Ta minus-plus
 .It \e(pc      Ta \(pc     Ta centre-dot  .It \e[t+-]  Ta \[t+-]      Ta plus-minus (text font)
 .It \e(mu      Ta \(mu     Ta multiply  .It \e(+-    Ta \(+-        Ta plus-minus (special font)
 .It \e[tmu]    Ta \[tmu]   Ta multiply (text)  .It \e(pc    Ta \(pc        Ta center-dot
 .It \e(c*      Ta \(c*     Ta circle-multiply  .It \e[tmu]  Ta \[tmu]      Ta multiply (text font)
 .It \e(c+      Ta \(c+     Ta circle-plus  .It \e(mu    Ta \(mu        Ta multiply (special font)
 .It \e(di      Ta \(di     Ta divide  .It \e(c*    Ta \(c*        Ta circle-multiply
 .It \e[tdi]    Ta \[tdi]   Ta divide (text)  .It \e(c+    Ta \(c+        Ta circle-plus
 .It \e(f/      Ta \(f/     Ta fraction  .It \e[tdi]  Ta \[tdi]      Ta divide (text font)
 .It \e(**      Ta \(**     Ta asterisk  .It \e(di    Ta \(di        Ta divide (special font)
 .It \e(<=      Ta \(<=     Ta less-than-equal  .It \e(f/    Ta \(f/        Ta fraction
 .It \e(>=      Ta \(>=     Ta greater-than-equal  .It \e(**    Ta \(**        Ta asterisk
 .It \e(<<      Ta \(<<     Ta much less  .It \e(<=    Ta \(<=        Ta less-than-equal
 .It \e(>>      Ta \(>>     Ta much greater  .It \e(>=    Ta \(>=        Ta greater-than-equal
 .It \e(eq      Ta \(eq     Ta equal  .It \e(<<    Ta \(<<        Ta much less
 .It \e(!=      Ta \(!=     Ta not equal  .It \e(>>    Ta \(>>        Ta much greater
 .It \e(==      Ta \(==     Ta equivalent  .It \e(eq    Ta \(eq        Ta equal
 .It \e(ne      Ta \(ne     Ta not equivalent  .It \e(!=    Ta \(!=        Ta not equal
 .It \e(=~      Ta \(=~     Ta congruent  .It \e(==    Ta \(==        Ta equivalent
 .It \e(-~      Ta \(-~     Ta asymptotically congruent  .It \e(ne    Ta \(ne        Ta not equivalent
 .It \e(ap      Ta \(ap     Ta asymptotically similar  .It \e(ap    Ta \(ap        Ta tilde operator
 .It \e(~~      Ta \(~~     Ta approximately similar  .It \e(|=    Ta \(|=        Ta asymptotically equal
 .It \e(~=      Ta \(~=     Ta approximately equal  .It \e(=\(ti Ta \(=~        Ta approximately equal
 .It \e(pt      Ta \(pt     Ta proportionate  .It \e(\(ti\(ti Ta \(~~        Ta almost equal
 .It \e(es      Ta \(es     Ta empty set  .It \e(\(ti= Ta \(~=        Ta almost equal
 .It \e(mo      Ta \(mo     Ta element  .It \e(pt    Ta \(pt        Ta proportionate
 .It \e(nm      Ta \(nm     Ta not element  .It \e(es    Ta \(es        Ta empty set
 .It \e(sb      Ta \(sb     Ta proper subset  .It \e(mo    Ta \(mo        Ta element
 .It \e(nb      Ta \(nb     Ta not subset  .It \e(nm    Ta \(nm        Ta not element
 .It \e(sp      Ta \(sp     Ta proper superset  .It \e(sb    Ta \(sb        Ta proper subset
 .It \e(nc      Ta \(nc     Ta not superset  .It \e(nb    Ta \(nb        Ta not subset
 .It \e(ib      Ta \(ib     Ta reflexive subset  .It \e(sp    Ta \(sp        Ta proper superset
 .It \e(ip      Ta \(ip     Ta reflexive superset  .It \e(nc    Ta \(nc        Ta not superset
 .It \e(ca      Ta \(ca     Ta intersection  .It \e(ib    Ta \(ib        Ta reflexive subset
 .It \e(cu      Ta \(cu     Ta union  .It \e(ip    Ta \(ip        Ta reflexive superset
 .It \e(/_      Ta \(/_     Ta angle  .It \e(ca    Ta \(ca        Ta intersection
 .It \e(pp      Ta \(pp     Ta perpendicular  .It \e(cu    Ta \(cu        Ta union
 .It \e(is      Ta \(is     Ta integral  .It \e(/_    Ta \(/_        Ta angle
   .It \e(pp    Ta \(pp        Ta perpendicular
   .It \e(is    Ta \(is        Ta integral
 .It \e[integral] Ta \[integral] Ta integral  .It \e[integral] Ta \[integral] Ta integral
 .It \e[sum]    Ta \[sum]   Ta summation  .It \e[sum]    Ta \[sum]   Ta summation
 .It \e[product] Ta \[product] Ta product  .It \e[product] Ta \[product] Ta product
 .It \e[coproduct] Ta \[coproduct] Ta coproduct  .It \e[coproduct] Ta \[coproduct] Ta coproduct
 .It \e(gr      Ta \(gr     Ta gradient  .It \e(gr    Ta \(gr        Ta gradient
 .It \e(sr      Ta \(sr     Ta square root  .It \e(sr    Ta \(sr        Ta square root
 .It \e[sqrt]   Ta \[sqrt]  Ta square root  .It \e[sqrt] Ta \[sqrt]     Ta square root
 .It \e(lc      Ta \(lc     Ta left-ceiling  .It \e(lc    Ta \(lc        Ta left-ceiling
 .It \e(rc      Ta \(rc     Ta right-ceiling  .It \e(rc    Ta \(rc        Ta right-ceiling
 .It \e(lf      Ta \(lf     Ta left-floor  .It \e(lf    Ta \(lf        Ta left-floor
 .It \e(rf      Ta \(rf     Ta right-floor  .It \e(rf    Ta \(rf        Ta right-floor
 .It \e(if      Ta \(if     Ta infinity  .It \e(if    Ta \(if        Ta infinity
 .It \e(Ah      Ta \(Ah     Ta aleph  .It \e(Ah    Ta \(Ah        Ta aleph
 .It \e(Im      Ta \(Im     Ta imaginary  .It \e(Im    Ta \(Im        Ta imaginary
 .It \e(Re      Ta \(Re     Ta real  .It \e(Re    Ta \(Re        Ta real
 .It \e(pd      Ta \(pd     Ta partial differential  .It \e(wp    Ta \(wp        Ta Weierstrass p
 .It \e(-h      Ta \(-h     Ta Planck constant over 2\(*p  .It \e(pd    Ta \(pd        Ta partial differential
   .It \e(-h    Ta \(-h        Ta Planck constant over 2\(*p
   .It \e[hbar] Ta \[hbar]     Ta Planck constant over 2\(*p
   .It \e(12    Ta \(12        Ta one-half
   .It \e(14    Ta \(14        Ta one-fourth
   .It \e(34    Ta \(34        Ta three-fourths
   .It \e(18    Ta \(18        Ta one-eighth
   .It \e(38    Ta \(38        Ta three-eighths
   .It \e(58    Ta \(58        Ta five-eighths
   .It \e(78    Ta \(78        Ta seven-eighths
   .It \e(S1    Ta \(S1        Ta superscript 1
   .It \e(S2    Ta \(S2        Ta superscript 2
   .It \e(S3    Ta \(S3        Ta superscript 3
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Ligatures:  Ligatures:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(ff      Ta \(ff     Ta ff ligature  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(fi      Ta \(fi     Ta fi ligature  .It \e(ff    Ta \(ff        Ta ff ligature
 .It \e(fl      Ta \(fl     Ta fl ligature  .It \e(fi    Ta \(fi        Ta fi ligature
 .It \e(Fi      Ta \(Fi     Ta ffi ligature  .It \e(fl    Ta \(fl        Ta fl ligature
 .It \e(Fl      Ta \(Fl     Ta ffl ligature  .It \e(Fi    Ta \(Fi        Ta ffi ligature
 .It \e(AE      Ta \(AE     Ta AE  .It \e(Fl    Ta \(Fl        Ta ffl ligature
 .It \e(ae      Ta \(ae     Ta ae  .It \e(AE    Ta \(AE        Ta AE
 .It \e(OE      Ta \(OE     Ta OE  .It \e(ae    Ta \(ae        Ta ae
 .It \e(oe      Ta \(oe     Ta oe  .It \e(OE    Ta \(OE        Ta OE
 .It \e(ss      Ta \(ss     Ta German eszett  .It \e(oe    Ta \(oe        Ta oe
 .It \e(IJ      Ta \(IJ     Ta IJ ligature  .It \e(ss    Ta \(ss        Ta German eszett
 .It \e(ij      Ta \(ij     Ta ij ligature  .It \e(IJ    Ta \(IJ        Ta IJ ligature
   .It \e(ij    Ta \(ij        Ta ij ligature
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Accents:  Accents:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(a"      Ta \(a"     Ta Hungarian umlaut  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(a-      Ta \(a-     Ta macron  .It \e(a"    Ta \(a"        Ta Hungarian umlaut
 .It \e(a.      Ta \(a.     Ta dotted  .It \e(a-    Ta \(a-        Ta macron
 .It \e(a^      Ta \(a^     Ta circumflex  .It \e(a.    Ta \(a.        Ta dotted
 .It \e(aa      Ta \(aa     Ta acute  .It \e(a^    Ta \(a^        Ta circumflex
 .It \e(ga      Ta \(ga     Ta grave  .It \e(aa    Ta \(aa        Ta acute
 .It \e(ab      Ta \(ab     Ta breve  .It \e\(aq   Ta \'          Ta acute
 .It \e(ac      Ta \(ac     Ta cedilla  .It \e(ga    Ta \(ga        Ta grave
 .It \e(ad      Ta \(ad     Ta dieresis  .It \e\(ga   Ta \`          Ta grave
 .It \e(ah      Ta \(ah     Ta caron  .It \e(ab    Ta \(ab        Ta breve
 .It \e(ao      Ta \(ao     Ta ring  .It \e(ac    Ta \(ac        Ta cedilla
 .It \e(a~      Ta \(a~     Ta tilde  .It \e(ad    Ta \(ad        Ta dieresis
 .It \e(ho      Ta \(ho     Ta ogonek  .It \e(ah    Ta \(ah        Ta caron
 .It \e(ha      Ta \(ha     Ta hat (text)  .It \e(ao    Ta \(ao        Ta ring
 .It \e(ti      Ta \(ti     Ta tilde (text)  .It \e(a\(ti Ta \(a~        Ta tilde
   .It \e(ho    Ta \(ho        Ta ogonek
   .It \e(ha    Ta \(ha        Ta hat (ASCII character)
   .It \e(ti    Ta \(ti        Ta tilde (ASCII character)
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Accented letters:  Accented letters:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e('A      Ta \('A     Ta acute A  .It Em Input Ta Em Rendered Ta Em Description
 .It \e('E      Ta \('E     Ta acute E  .It \e(\(aqA Ta \('A        Ta acute A
 .It \e('I      Ta \('I     Ta acute I  .It \e(\(aqE Ta \('E        Ta acute E
 .It \e('O      Ta \('O     Ta acute O  .It \e(\(aqI Ta \('I        Ta acute I
 .It \e('U      Ta \('U     Ta acute U  .It \e(\(aqO Ta \('O        Ta acute O
 .It \e('a      Ta \('a     Ta acute a  .It \e(\(aqU Ta \('U        Ta acute U
 .It \e('e      Ta \('e     Ta acute e  .It \e(\(aqa Ta \('a        Ta acute a
 .It \e('i      Ta \('i     Ta acute i  .It \e(\(aqe Ta \('e        Ta acute e
 .It \e('o      Ta \('o     Ta acute o  .It \e(\(aqi Ta \('i        Ta acute i
 .It \e('u      Ta \('u     Ta acute u  .It \e(\(aqo Ta \('o        Ta acute o
 .It \e(`A      Ta \(`A     Ta grave A  .It \e(\(aqu Ta \('u        Ta acute u
 .It \e(`E      Ta \(`E     Ta grave E  .It \e(\(gaA Ta \(`A        Ta grave A
 .It \e(`I      Ta \(`I     Ta grave I  .It \e(\(gaE Ta \(`E        Ta grave E
 .It \e(`O      Ta \(`O     Ta grave O  .It \e(\(gaI Ta \(`I        Ta grave I
 .It \e(`U      Ta \(`U     Ta grave U  .It \e(\(gaO Ta \(`O        Ta grave O
 .It \e(`a      Ta \(`a     Ta grave a  .It \e(\(gaU Ta \(`U        Ta grave U
 .It \e(`e      Ta \(`e     Ta grave e  .It \e(\(gaa Ta \(`a        Ta grave a
 .It \e(`i      Ta \(`i     Ta grave i  .It \e(\(gae Ta \(`e        Ta grave e
 .It \e(`o      Ta \(`i     Ta grave o  .It \e(\(gai Ta \(`i        Ta grave i
 .It \e(`u      Ta \(`u     Ta grave u  .It \e(\(gao Ta \(`i        Ta grave o
 .It \e(~A      Ta \(~A     Ta tilde A  .It \e(\(gau Ta \(`u        Ta grave u
 .It \e(~N      Ta \(~N     Ta tilde N  .It \e(\(tiA Ta \(~A        Ta tilde A
 .It \e(~O      Ta \(~O     Ta tilde O  .It \e(\(tiN Ta \(~N        Ta tilde N
 .It \e(~a      Ta \(~a     Ta tilde a  .It \e(\(tiO Ta \(~O        Ta tilde O
 .It \e(~n      Ta \(~n     Ta tilde n  .It \e(\(tia Ta \(~a        Ta tilde a
 .It \e(~o      Ta \(~o     Ta tilde o  .It \e(\(tin Ta \(~n        Ta tilde n
 .It \e(:A      Ta \(:A     Ta dieresis A  .It \e(\(tio Ta \(~o        Ta tilde o
 .It \e(:E      Ta \(:E     Ta dieresis E  .It \e(:A    Ta \(:A        Ta dieresis A
 .It \e(:I      Ta \(:I     Ta dieresis I  .It \e(:E    Ta \(:E        Ta dieresis E
 .It \e(:O      Ta \(:O     Ta dieresis O  .It \e(:I    Ta \(:I        Ta dieresis I
 .It \e(:U      Ta \(:U     Ta dieresis U  .It \e(:O    Ta \(:O        Ta dieresis O
 .It \e(:a      Ta \(:a     Ta dieresis a  .It \e(:U    Ta \(:U        Ta dieresis U
 .It \e(:e      Ta \(:e     Ta dieresis e  .It \e(:a    Ta \(:a        Ta dieresis a
 .It \e(:i      Ta \(:i     Ta dieresis i  .It \e(:e    Ta \(:e        Ta dieresis e
 .It \e(:o      Ta \(:o     Ta dieresis o  .It \e(:i    Ta \(:i        Ta dieresis i
 .It \e(:u      Ta \(:u     Ta dieresis u  .It \e(:o    Ta \(:o        Ta dieresis o
 .It \e(:y      Ta \(:y     Ta dieresis y  .It \e(:u    Ta \(:u        Ta dieresis u
 .It \e(^A      Ta \(^A     Ta circumflex A  .It \e(:y    Ta \(:y        Ta dieresis y
 .It \e(^E      Ta \(^E     Ta circumflex E  .It \e(^A    Ta \(^A        Ta circumflex A
 .It \e(^I      Ta \(^I     Ta circumflex I  .It \e(^E    Ta \(^E        Ta circumflex E
 .It \e(^O      Ta \(^O     Ta circumflex O  .It \e(^I    Ta \(^I        Ta circumflex I
 .It \e(^U      Ta \(^U     Ta circumflex U  .It \e(^O    Ta \(^O        Ta circumflex O
 .It \e(^a      Ta \(^a     Ta circumflex a  .It \e(^U    Ta \(^U        Ta circumflex U
 .It \e(^e      Ta \(^e     Ta circumflex e  .It \e(^a    Ta \(^a        Ta circumflex a
 .It \e(^i      Ta \(^i     Ta circumflex i  .It \e(^e    Ta \(^e        Ta circumflex e
 .It \e(^o      Ta \(^o     Ta circumflex o  .It \e(^i    Ta \(^i        Ta circumflex i
 .It \e(^u      Ta \(^u     Ta circumflex u  .It \e(^o    Ta \(^o        Ta circumflex o
 .It \e(,C      Ta \(,C     Ta cedilla C  .It \e(^u    Ta \(^u        Ta circumflex u
 .It \e(,c      Ta \(,c     Ta cedilla c  .It \e(,C    Ta \(,C        Ta cedilla C
 .It \e(/L      Ta \(/L     Ta stroke L  .It \e(,c    Ta \(,c        Ta cedilla c
 .It \e(/l      Ta \(/l     Ta stroke l  .It \e(/L    Ta \(/L        Ta stroke L
 .It \e(/O      Ta \(/O     Ta stroke O  .It \e(/l    Ta \(/l        Ta stroke l
 .It \e(/o      Ta \(/o     Ta stroke o  .It \e(/O    Ta \(/O        Ta stroke O
 .It \e(oA      Ta \(oA     Ta ring A  .It \e(/o    Ta \(/o        Ta stroke o
 .It \e(oa      Ta \(oa     Ta ring a  .It \e(oA    Ta \(oA        Ta ring A
   .It \e(oa    Ta \(oa        Ta ring a
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Special letters:  Special letters:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(-D      Ta \(-D     Ta Eth  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(Sd      Ta \(Sd     Ta eth  .It \e(-D    Ta \(-D        Ta Eth
 .It \e(TP      Ta \(TP     Ta Thorn  .It \e(Sd    Ta \(Sd        Ta eth
 .It \e(Tp      Ta \(Tp     Ta thorn  .It \e(TP    Ta \(TP        Ta Thorn
 .It \e(.i      Ta \(.i     Ta dotless i  .It \e(Tp    Ta \(Tp        Ta thorn
 .It \e(.j      Ta \(.j     Ta dotless j  .It \e(.i    Ta \(.i        Ta dotless i
   .It \e(.j    Ta \(.j        Ta dotless j
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Monetary:  Currency:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(Cs      Ta \(Cs     Ta Scandinavian  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(Do      Ta \(Do     Ta dollar  .It \e(Do    Ta \(Do        Ta dollar
 .It \e(Po      Ta \(Po     Ta pound  .It \e(ct    Ta \(ct        Ta cent
 .It \e(Ye      Ta \(Ye     Ta yen  .It \e(Eu    Ta \(Eu        Ta Euro symbol
 .It \e(Fn      Ta \(Fn     Ta florin  .It \e(eu    Ta \(eu        Ta Euro symbol
 .It \e(ct      Ta \(ct     Ta cent  .It \e(Ye    Ta \(Ye        Ta yen
 .It \e(Eu      Ta \(Eu     Ta Euro character glyph  .It \e(Po    Ta \(Po        Ta pound
 .It \e(eu      Ta \(eu     Ta Euro symbol  .It \e(Cs    Ta \(Cs        Ta Scandinavian
   .It \e(Fn    Ta \(Fn        Ta florin
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Greek letters:  Units:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(*A      Ta \(*A     Ta Alpha  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(*B      Ta \(*B     Ta Beta  .It \e(de    Ta \(de        Ta degree
 .It \e(*G      Ta \(*G     Ta Gamma  .It \e(%0    Ta \(%0        Ta per-thousand
 .It \e(*D      Ta \(*D     Ta Delta  .It \e(fm    Ta \(fm        Ta minute
 .It \e(*E      Ta \(*E     Ta Epsilon  .It \e(sd    Ta \(sd        Ta second
 .It \e(*Z      Ta \(*Z     Ta Zeta  .It \e(mc    Ta \(mc        Ta micro
 .It \e(*Y      Ta \(*Y     Ta Eta  .It \e(Of    Ta \(Of        Ta Spanish female ordinal
 .It \e(*H      Ta \(*H     Ta Theta  .It \e(Om    Ta \(Om        Ta Spanish masculine ordinal
 .It \e(*I      Ta \(*I     Ta Iota  
 .It \e(*K      Ta \(*K     Ta Kappa  
 .It \e(*L      Ta \(*L     Ta Lambda  
 .It \e(*M      Ta \(*M     Ta Mu  
 .It \e(*N      Ta \(*N     Ta Nu  
 .It \e(*C      Ta \(*C     Ta Xi  
 .It \e(*O      Ta \(*O     Ta Omicron  
 .It \e(*P      Ta \(*P     Ta Pi  
 .It \e(*R      Ta \(*R     Ta Rho  
 .It \e(*S      Ta \(*S     Ta Sigma  
 .It \e(*T      Ta \(*T     Ta Tau  
 .It \e(*U      Ta \(*U     Ta Upsilon  
 .It \e(*F      Ta \(*F     Ta Phi  
 .It \e(*X      Ta \(*X     Ta Chi  
 .It \e(*Q      Ta \(*Q     Ta Psi  
 .It \e(*W      Ta \(*W     Ta Omega  
 .It \e(*a      Ta \(*a     Ta alpha  
 .It \e(*b      Ta \(*b     Ta beta  
 .It \e(*g      Ta \(*g     Ta gamma  
 .It \e(*d      Ta \(*d     Ta delta  
 .It \e(*e      Ta \(*e     Ta epsilon  
 .It \e(*z      Ta \(*z     Ta zeta  
 .It \e(*y      Ta \(*y     Ta eta  
 .It \e(*h      Ta \(*h     Ta theta  
 .It \e(*i      Ta \(*i     Ta iota  
 .It \e(*k      Ta \(*k     Ta kappa  
 .It \e(*l      Ta \(*l     Ta lambda  
 .It \e(*m      Ta \(*m     Ta mu  
 .It \e(*n      Ta \(*n     Ta nu  
 .It \e(*c      Ta \(*c     Ta xi  
 .It \e(*o      Ta \(*o     Ta omicron  
 .It \e(*p      Ta \(*p     Ta pi  
 .It \e(*r      Ta \(*r     Ta rho  
 .It \e(*s      Ta \(*s     Ta sigma  
 .It \e(*t      Ta \(*t     Ta tau  
 .It \e(*u      Ta \(*u     Ta upsilon  
 .It \e(*f      Ta \(*f     Ta phi  
 .It \e(*x      Ta \(*x     Ta chi  
 .It \e(*q      Ta \(*q     Ta psi  
 .It \e(*w      Ta \(*w     Ta omega  
 .It \e(+h      Ta \(+h     Ta theta variant  
 .It \e(+f      Ta \(+f     Ta phi variant  
 .It \e(+p      Ta \(+p     Ta pi variant  
 .It \e(+e      Ta \(+e     Ta epsilon variant  
 .It \e(ts      Ta \(ts     Ta sigma terminal  
 .El  .El
 .\" PARAGRAPH  
 .Pp  .Pp
 Special symbols:  Greek letters:
 .Bl -offset indent -column 10n 10n 10n  .Bl -column "Input" "Rendered" "Description" -offset indent -compact
 .It \e(de      Ta \(de     Ta degree  .It Em Input Ta Em Rendered Ta Em Description
 .It \e(ps      Ta \(ps     Ta paragraph  .It \e(*A    Ta \(*A        Ta Alpha
 .It \e(sc      Ta \(sc     Ta section  .It \e(*B    Ta \(*B        Ta Beta
 .It \e(dg      Ta \(dg     Ta dagger  .It \e(*G    Ta \(*G        Ta Gamma
 .It \e(dd      Ta \(dd     Ta double dagger  .It \e(*D    Ta \(*D        Ta Delta
 .It \e(ci      Ta \(ci     Ta circle  .It \e(*E    Ta \(*E        Ta Epsilon
 .It \e(ba      Ta \(ba     Ta bar  .It \e(*Z    Ta \(*Z        Ta Zeta
 .It \e(bb      Ta \(bb     Ta broken bar  .It \e(*Y    Ta \(*Y        Ta Eta
 .It \e(co      Ta \(co     Ta copyright  .It \e(*H    Ta \(*H        Ta Theta
 .It \e(rg      Ta \(rg     Ta registered  .It \e(*I    Ta \(*I        Ta Iota
 .It \e(tm      Ta \(tm     Ta trademarked  .It \e(*K    Ta \(*K        Ta Kappa
 .It \ee        Ta \e       Ta escape  .It \e(*L    Ta \(*L        Ta Lambda
 .It \e(lh      Ta \(lh     Ta left hand  .It \e(*M    Ta \(*M        Ta Mu
 .It \e(rh      Ta \(rh     Ta right hand  .It \e(*N    Ta \(*N        Ta Nu
 .El  .It \e(*C    Ta \(*C        Ta Xi
 .\" SECTION  .It \e(*O    Ta \(*O        Ta Omicron
   .It \e(*P    Ta \(*P        Ta Pi
   .It \e(*R    Ta \(*R        Ta Rho
   .It \e(*S    Ta \(*S        Ta Sigma
   .It \e(*T    Ta \(*T        Ta Tau
   .It \e(*U    Ta \(*U        Ta Upsilon
   .It \e(*F    Ta \(*F        Ta Phi
   .It \e(*X    Ta \(*X        Ta Chi
   .It \e(*Q    Ta \(*Q        Ta Psi
   .It \e(*W    Ta \(*W        Ta Omega
   .It \e(*a    Ta \(*a        Ta alpha
   .It \e(*b    Ta \(*b        Ta beta
   .It \e(*g    Ta \(*g        Ta gamma
   .It \e(*d    Ta \(*d        Ta delta
   .It \e(*e    Ta \(*e        Ta epsilon
   .It \e(*z    Ta \(*z        Ta zeta
   .It \e(*y    Ta \(*y        Ta eta
   .It \e(*h    Ta \(*h        Ta theta
   .It \e(*i    Ta \(*i        Ta iota
   .It \e(*k    Ta \(*k        Ta kappa
   .It \e(*l    Ta \(*l        Ta lambda
   .It \e(*m    Ta \(*m        Ta mu
   .It \e(*n    Ta \(*n        Ta nu
   .It \e(*c    Ta \(*c        Ta xi
   .It \e(*o    Ta \(*o        Ta omicron
   .It \e(*p    Ta \(*p        Ta pi
   .It \e(*r    Ta \(*r        Ta rho
   .It \e(*s    Ta \(*s        Ta sigma
   .It \e(*t    Ta \(*t        Ta tau
   .It \e(*u    Ta \(*u        Ta upsilon
   .It \e(*f    Ta \(*f        Ta phi
   .It \e(*x    Ta \(*x        Ta chi
   .It \e(*q    Ta \(*q        Ta psi
   .It \e(*w    Ta \(*w        Ta omega
   .It \e(+h    Ta \(+h        Ta theta variant
   .It \e(+f    Ta \(+f        Ta phi variant
   .It \e(+p    Ta \(+p        Ta pi variant
   .It \e(+e    Ta \(+e        Ta epsilon variant
   .It \e(ts    Ta \(ts        Ta sigma terminal
   .El
 .Sh PREDEFINED STRINGS  .Sh PREDEFINED STRINGS
 These are not recommended for use, as they differ across  Predefined strings are inherited from the macro packages of historical
 implementations:  troff implementations.
   They are
   .Em not recommended
   for use, as they differ across implementations.
   Manuals using these predefined strings are almost certainly not
   portable.
 .Pp  .Pp
 Mathematical:  Their syntax is similar to special characters, using
 .Bl -offset indent -column 10n 10n 10n  .Sq \e*X
 .It \e*(Ba     Ta \*(Ba    Ta vertical bar  .Pq for a one-character escape ,
 .It \e*(Ne     Ta \*(Ne    Ta not equal  .Sq \e*(XX
 .It \e*(Ge     Ta \*(Ge    Ta greater-than-equal  .Pq two-character ,
 .It \e*(Le     Ta \*(Le    Ta less-than-equal  and
 .It \e*(Gt     Ta \*(Gt    Ta greater-than  .Sq \e*[N]
 .It \e*(Lt     Ta \*(Lt    Ta less-than  .Pq N-character .
 .It \e*(Pm     Ta \*(Pm    Ta plus-minus  For details, see the
 .It \e*(If     Ta \*(If    Ta infinity  .Em Predefined Strings
 .It \e*(Pi     Ta \*(Pi    Ta pi  subsection of the
 .It \e*(Na     Ta \*(Na    Ta NaN  .Xr roff 7
   manual.
   .Bl -column "Input" "Rendered" "Description" -offset indent
   .It Em Input Ta Em Rendered Ta Em Description
   .It \e*(Ba   Ta \*(Ba       Ta vertical bar
   .It \e*(Ne   Ta \*(Ne       Ta not equal
   .It \e*(Ge   Ta \*(Ge       Ta greater-than-equal
   .It \e*(Le   Ta \*(Le       Ta less-than-equal
   .It \e*(Gt   Ta \*(Gt       Ta greater-than
   .It \e*(Lt   Ta \*(Lt       Ta less-than
   .It \e*(Pm   Ta \*(Pm       Ta plus-minus
   .It \e*(If   Ta \*(If       Ta infinity
   .It \e*(Pi   Ta \*(Pi       Ta pi
   .It \e*(Na   Ta \*(Na       Ta NaN
   .It \e*(Am   Ta \*(Am       Ta ampersand
   .It \e*R     Ta \*R         Ta restricted mark
   .It \e*(Tm   Ta \*(Tm       Ta trade mark
   .It \e*q     Ta \*q         Ta double-quote
   .It \e*(Rq   Ta \*(Rq       Ta right-double-quote
   .It \e*(Lq   Ta \*(Lq       Ta left-double-quote
   .It \e*(lp   Ta \*(lp       Ta right-parenthesis
   .It \e*(rp   Ta \*(rp       Ta left-parenthesis
   .It \e*(lq   Ta \*(lq       Ta left double-quote
   .It \e*(rq   Ta \*(rq       Ta right double-quote
   .It \e*(ua   Ta \*(ua       Ta up arrow
   .It \e*(va   Ta \*(va       Ta up-down arrow
   .It \e*(<=   Ta \*(<=       Ta less-than-equal
   .It \e*(>=   Ta \*(>=       Ta greater-than-equal
   .It \e*(aa   Ta \*(aa       Ta acute
   .It \e*(ga   Ta \*(ga       Ta grave
   .It \e*(Px   Ta \*(Px       Ta POSIX standard name
   .It \e*(Ai   Ta \*(Ai       Ta ANSI standard name
 .El  .El
 .\" PARAGRAPH  .Sh UNICODE CHARACTERS
   The escape sequences
 .Pp  .Pp
 Special symbols:  .Dl \e[uXXXX] and \eC\(aquXXXX\(aq
 .Bl -offset indent -column 10n 10n 10n  
 .It \e*(Ba     Ta \*(Ba    Ta vertical bar  
 .It \e*(Am     Ta \*(Am    Ta ampersand  
 .It \e*R       Ta \*R      Ta restricted mark  
 .It \e*(Tm     Ta \*(Tm    Ta trade mark  
 .El  
 .\" PARAGRAPH  
 .Pp  .Pp
 Enclosures:  are interpreted as Unicode codepoints.
 .Bl -offset indent -column 10n 10n 10n  The codepoint must be in the range above U+0080 and less than U+10FFFF.
 .It \e*q       Ta \*q      Ta double-quote  For compatibility, the hexadecimal digits
 .It \e*(Rq     Ta \*(Rq    Ta right-double-quote  .Sq A
 .It \e*(Lq     Ta \*(Lq    Ta left-double-quote  to
 .It \e*(lp     Ta \*(lp    Ta right-parenthesis  .Sq F
 .It \e*(rp     Ta \*(rp    Ta left-parenthesis  must be given as uppercase characters,
 .El  and points must be zero-padded to four characters; if
 .\" SECTION  greater than four characters, no zero padding is allowed.
 .Sh COMPATIBILITY  Unicode surrogates are not allowed.
 This section documents compatibility of  .Sh NUMBERED CHARACTERS
 .Nm  For backward compatibility with existing manuals,
 with older or existing versions of  .Xr mandoc 1
 .Xr groff 1 .  also supports the
 .Pp  .Pp
 The following render differently in  .Dl \eN\(aq Ns Ar number Ns \(aq
 .Fl T Ns Ar ascii  
 output mode:  
 .Bd -ragged -offset indent  
 \e(ss, \e(nm, \e(nb, \e(nc, \e(ib, \e(ip, \e(pp, \e[sum], \e[product],  
 \e[coproduct], \e(gr, \e(-h, \e(a.  
 .Ed  
 .Pp  .Pp
 The following render differently in  escape sequence, inserting the character
 .Fl T Ns Ar html  .Ar number
 output mode:  from the current character set into the output.
 .Bd -ragged -offset indent  Of course, this is inherently non-portable and is already marked
 \e(~=, \e(nb, \e(nc  as deprecated in the Heirloom roff manual.
 .Ed  For example, do not use \eN\(aq34\(aq, use \e(dq, or even the plain
   .Sq \(dq
   character where possible.
   .Sh COMPATIBILITY
   This section documents compatibility between mandoc and other
   troff implementations, at this time limited to GNU troff
   .Pq Qq groff .
 .Pp  .Pp
 Finally, the following have been omitted by being poorly documented or  .Bl -dash -compact
 having no known representation:  .It
 .Bd -ragged -offset indent  The \eN\(aq\(aq escape sequence is limited to printable characters; in
 \e[radicalex], \e[sqrtex]  groff, it accepts arbitrary character numbers.
 .Ed  .It
 .\" SECTION  In
   .Fl T Ns Cm ascii ,
   the
   \e(ss, \e(nm, \e(nb, \e(nc, \e(ib, \e(ip, \e(pp, \e[sum], \e[product],
   \e[coproduct], \e(gr, \e(-h, and \e(a. special characters render
   differently between mandoc and groff.
   .It
   In
   .Fl T Ns Cm html ,
   the \e(\(ti=, \e(nb, and \e(nc special characters render differently
   between mandoc and groff.
   .It
   The
   .Fl T Ns Cm ps
   and
   .Fl T Ns Cm pdf
   modes format like
   .Fl T Ns Cm ascii
   instead of rendering glyphs as in groff.
   .It
   The \e[radicalex], \e[sqrtex], and \e(ru special characters have been omitted
   from mandoc either because they are poorly documented or they have no
   known representation.
   .El
 .Sh SEE ALSO  .Sh SEE ALSO
 .Xr mandoc 1  .Xr mandoc 1 ,
 .\" SECTION  .Xr man 7 ,
   .Xr mdoc 7 ,
   .Xr roff 7
 .Sh AUTHORS  .Sh AUTHORS
 The  The
 .Nm  .Nm
 utility was written by  manual page was written by
 .An Kristaps Dzonsons Aq kristaps@kth.se .  .An Kristaps Dzonsons Aq Mt kristaps@bsd.lv .
   .Sh CAVEATS
   The predefined string
   .Sq \e*(Ba
   mimics the behaviour of the
   .Sq \&|
   character in
   .Xr mdoc 7 ;
   thus, if you wish to render a vertical bar with no side effects, use
   the
   .Sq \e(ba
   escape.
Legend:
Removed from v.1.21  
changed lines
  Added in v.1.72
CVSweb